Form holder for concrete walls



March 22, 1927. 1,622,072

E. WATSON FORM HOLDER FOR CONCRETE WALLS Filed May 26. 1925 INVENTOR.

fen 5 r W? 7150.

ATTORNEYS.

Patented Mar. 22, 1927.

UNETE STATES 1,622,072 Fries.

ERNEST WATSON, WAUWATOSA, WISCONSIN.

FORM HOLDER FOR, CONCRETE WALLS.

Application filed May 26, 1825. Serial No. 32,910.

My invention relates to an improved form holder for concrete wall construction, which is exceedingly simple in design, and which by reason of its knock-down characteristics is readily portable for convenient transportation from place to place and at the same time is economical in point of space required for storage when not in use.

The invention resides in a frame comprised of two vertical guides or uprights which are tied together at top and bottom to maintain their parallelism and separation a distance equal to the thickness of the wall to be cast. These guides or uprights, or frames which they compose, are intended to be transversely positioned at a given distance apart in the length of the wall, and are adapted to support at their inner opposite sides a plurality of longitudinally extending bars, arranged one over another, upon which bars may be supported the fiat metal forms or plates which define the wall formation.

The longitudinal bars preferably are all of the same length as a matter of conven ience in several particulars, and the metal forms or plates are preferably all of the same width for like reasons. If the length of the wall be such that the length of the longitudinal bars cannot be evenly divided thereunto, the longitudinal bars may overlap for a portion of their length, and thus be arranged so as to support the metal forms in the desired position. It is preferable that the metal forms or plates be a multiple of the length of the longitudinal bars. In case the number of the forms or plates used in a given line does not divide evenly into the length of the wall surface, the plates may be made to overlap at their vertical margins, and so compose the required length of wall-forming surface.

By reason of the provisions for adjustment described, a form holder for any length of wall may be set up instantly, and without the requirement for special fittings as in case where the standard forms do not have ca pability of adjustment, but require special or irregular forms to complete the setting for casting a wall having a length into which the length of the form cannot be evenly divided.

The frame which constitutes the basic means for enabling the forms to be sustained in position, may be variously supported during the casting of the wall. The upper tie or cross bar from which the uprights depend may be supported upon a post or standard, the latter being set centrally with respect to the wall, or the frames may themselves rest at the bottom of the trench during the castmg of the first layer of the wall construction, and thereafter the frame may be supported by the lower tie or cross bar resting upon the top of the previously formed section of the wall, during subsequent casting.

The forms themselves have the shape of metal plates, and are adapted to be suspended in vertical position upon and be supported by the longitudinal bars. These plates maybe arranged in such succession as to define the surface of the wall of given length.

When the central post or standard is used to support the frame, the upper cross arm to which the vertical guides are connected is adapted to be adjusted vertically upon the post or standard, with the increase of the height of the wall, so that when one section is finished, the apparatus may be readily adjusted to permit the formation of a superposed section.

The invention embodies other details of construction which will be hereinafter described, and the novelty of the whole will be pointed out in the appended claims.

In the accompanying drawing:

Figure 1 is a perspective View of an assembled form holder, inaccordance with my invention, arranged for the production of a solid concrete wall.

Fig. 2 is an end View showing the arrangement of Fig. 1, but showing also an interposed means for the purposes of con structing a hollow wall.

Fig. 3 is an end view showing the means whereby the inside form holder in a hollow wall construction may be removed so as to permit withdrawal of the inner forms.

Fig. l is an enlarged sectional view of a part of the construction shown in Fig. 2.

Fig. 5 is a perspective view of the same parts.

Fig. 6 is a perspective view of a section of one of the vertical guides and showing the means for supporting the longitudinal bars thereon.

7 is a perspective view showing the manner in which the plates constituting the forms are supported upon the longitudinal bars.

In the drawing, the numerals 10 indicate a p al y 'p st 9 tal ne, the l wer ends of which are set in central in the bottom of the trench. These posts may be in the form of single rods, but are preterably in the form of tubes through which a rotl is passed with its point set in the ground at the bottom of the trench.

Cross bars 11 are provided at a point in: termetliate their ends with an eye in which is received the post or standard 10, set screw 1 2: threaded. into the cross ,bar is adapted to hold ,t'lie cros s fbai es ljhsterl vertioal position 'iipon the post or standard l0.

At their opposite ends the vcross sup por icaleuiile 3 n ar" the piieri lis ls, s ha uc gu d d p nd f 'oiii th e wfse bats A ee ress b2 1 emb ace th post hut is notelampecl thereto. lhesai cl ower '9 ba s g ttas lie l at t .ente e i to the vertical glllfile near the lower {ls oi the latter, soitliat such guides Q'lilliir gained rigidly in parallel vposition.

The structure inay'rbe stabilized by providing a third cross bar 15 Whieh is attached to the vertical guides at their extreme upper ends,

Inertier that the ve tica gu de 21% pos: s es t ne es a y rig dityhenl l re tthe outward pressnre'of the concrete while the latteris setting, such vertical guiclesare conveniently fornli'eel asangle irons are arranged 1 pair ligh y S amed, shown in Fig.5, and united by plates lfi tl e latter being rivetecl'to the parallehflanges of said gin-ales.

The plates 16 are extended outwardly at hei we e s way t am th eat n guides 3, as shew-i at 7 v 5, so we form the pockets in which may be received one flange v of the angle irons forming the o g dina ball .8-

In Fig, 1 l have shown three sets of the frame-like supports iglescrihecl, lyh en these are positioned, the longitudinal bars 18 are pa l therein and ainerl by the vertical flanges of the bars resting in the pockets formed between the oil-set ends of the plates 16 and the guides '13. The as se nblyis shown Figs. -1 ai' glfil. The tonnes themselves may beinetal plates 1 of s iitable length and width; Each plate has fasteneclto its rear si cle an eye 20 in which is swivelecl latch 2.1, the point of which is oesigned to'engage tlie'outerside of the longitudinal bar, and maintain the plate in vertical position, The longitudinal bars l8 will be in such number as will brace the plates l9 against ntlneglefiection by the concrete when the pouring takes place. If clesiree the forms on plates 19 may beiflang ed outwardly at their r pper ends as shown 23 in Figs. 1 and Qiaricl the fianges rest upon the upper one oft-he longitudinal bars. In cases vwhere the distance from the overlie for a portion of its length, another angle iron in reversed order, such other bar being retained in position by catches 24 piv-- otecl'in the spacebetween the pairs of vert fie uides h upp ross a the lowe legend tliejth ircl cross bar '15 are a ang with th r ends in the som separating th Pai ve f sli e 3,; nd 1- ion of parts is made by means of pins passing through perforations in the end o th ea e l ar aegis tering perforations in laterally extendie flan e 5 th ver i al eede- 33 lower gross 1% acts nerely as a tie ee an it may be a Ship of m a b t a i; re ivi l iiswe the we purpo ev u h ae l bel i l mbieilde l n deemin str ct ire', l helthir clcross bar 15 acts as a dis.- tance piece between the oppositely arranged g; des 13, nd isfmii e a a strip of man su fic nt-1y aeavy to preven uc ing" wid the str ins impose t ereon i t e ntrod ctipn of the niir t re into the molds. The hird @D S bar 15 act as? i tan epiece between the opposit g de In case it i des red ft anake a hollow o1- clonble ivall/an auxiliary form holder is arranged .intermerliately as Shown in 'F 2. To hermi hiSflPl -ii to h carried oiit, a c amp 26 is- .att ch 0 the P st in ow th @95 h 1; v r i lly xten ram verse notches at the ends of t-lie clamp receiving the lower flanges of a pair oif longiii. 'nal er 27- l e term 0 p t 2 ha rig flanges at upper ends lil lld sllpf ha t y that male an" t bar y e t eeg d a new 1 .1 are Jhe e f mplates being" lielel in separated position by means of longitudinalbars 29, connected by flexible members which pass through the vertical ps 31, so that WllGIltlle flexible nie i'nbersfifl iire straightas shown in Figs. 2, 41 and the foiglnfi Q1" Plates 28 will be held against deflection by the concrete. latter the i 1 has set, the pins connecting the lower cross bar 1!}: lto the lower ends of the gui cles J3, are Withdrawn. At the same time the vertical strips 81 are lifted o as in .el fiee th fl xi l t ps 30 in o the {position shown in ig, 3 The forms or Plate? 28 an than b i hd awn, inasmuch the pre ssure is released The forms or plates likewise be iwithclrawnupr on 1 mov ng the pins connecting the third cross r 15 v,totl e r pper enrls oi the guide 13, so thatth e latter may pivot away from the vall on the pins connecting them to the orages bar L1. The cross bars 11 may be ete te tieelly an th we tandard 10 t an t er p s lie af e hich h ssembly of the forms will be made as before.

The fact that the forms or plates 19 and 28 are independent, permits their ready arrangement lengthwise of the bars 18 and :27 to define the surfaces of the wall or walls. In case the width of the separate plates is not the multiple of the length of the wall, the situation may be met by overlapping the edges of adjacent plates as indicated at 33, in Fig. 1. V

The guides or uprights 13 and the several cross bars constitute a frame upon which the form holders, through the longitudinal bars 18, are supported. It is not necessary in all cases that this frame be supported upon a central post or standard, inasmuch as the several frames, properly aligned, may rest at the bottom of the trench during the operation of casting the first layer of the wall. After disconnecting the lower cross bar lt from the guides or uprights 13, the frame may be raised and a new cross bar 1% inserted and connected, and the forms or plates arranged for another casting operation. When positioned for the second and subsequent casting operations in the height of the wall, the extreme lower ends of each set of the guides or uprights 13 will embrace the upper sides of the last cast section of the wall, with the newly placed cross bar 1% resting thereon, and so position the form holder for the next casting operation.

The important feature of the invention resides in its extreme mobility. Its capacity for quick adaptability to meet the requirements of walls of different length by a simple adjustment of the longitudinal bars 18 and the forms or plates 19, irrespective of the length and width of those parts, permits its immediate installation under all conditions of its use. To disassemble, requires only that the pins 25 connecting the guides or uprights 13 to the cross bars, be withdrawn. ihe elements of the form holder are free from, substantial lateral projections, and may be bundled into a small space for convenient transportation and storage.

Having thus described my invention, Wild I claim and desire to secure by Letters Patent of the United States, is:

1. A form holder for concrete Work, comprising a central standard, a cross bar and depending parallel guides supported thereon, bars arranged longitudinally with relation to the said guides and supported removably thereon, and forms for the surfaces of the wall adjustably arranged on said longitudinal bars.

2. A form holder for concrete wall construction, comprising a central post, a cross bar adjustable vertically thereon, guides depending from the ends of the cross bar and supported at their upper ends on the cross bar, means for tying the lower ends of the guides to maintain parallelism, longitudinal bars supported removably on the guides, and forms for the surfaces of the walls adjustably arranged on the said longitudinal bars.

3. A form holder for concrete wall construction, comprising a central post, a cross bar adjustable Vertically thereon, depending,

guides supported at their upper ends upon the cross bar, the said guides each being constituted as a pair of spacedangle irons, between which the ends of the cross bar are pivoted, means for holding the guides in parallelism, longitudinal bars supported re movably on the said guides, and forms for the surfaces of the wall adj ustably arranged on the said longitudinal bars.

' 41. A form holder for concrete wall construction, comprising a central post, a cross bar at the upper end thereof, depending guides supported at their upper ends upon the cross bar, longitudinal bars associated with the guides, means on the latter for re movably supporting the said bars, means at the lower end of the guides for maintaining parallelism of the guides, and forms for the surfaces of the walls supported in adjustable position upon the said longitudinal bars.

5. A form holder for concrete wall construction, comprising a frame composed of uprights or guides and cross bars connecting the same to maintain parallelism of the said uprights or guides, longitudinal bars removably supported on the said uprights or guides, and removable forms for the outer surfaces of the Wall supported for longitudinal adjustment upon the said longitudinal bars.

6. A form holder for concrete wall construction, comprising a frame composed of uprights or guides and cross bars connecting the same to maintain parallelism of the said uprights or guides, longitudinal bars associated with the uprights or guides at their opposed inner faces, means on the guides or uprights for removably supporting the said longitudinal bars, and forms for the outer surfaces of the wall removably supported for longitudinal adjustment upon the said longitudinal bars.

7. A form holder for concrete Wall construction, comprising a frame composed of uprights or guides each formed of spaced angle irons and connected by plates attached to their flanges lying in the same plane, and upper cross bar having its ends entered into the spaces between the angle irons and pivoted thereto, means for connecting the lower ends of the uprights or guides to maintain parallelism of the latter, longitudinal bars removably supported upon the uprights or guides, and forms for the outer surfaces of the wall removably supported upon the said longitudinal bars.

8. A form holgler 01" po gre-pe wall 091 sfcrfiptip cgjmprigihg 51 frame pomppsecl of uprights 0r guides, "Crossbars ,cpnr lggti g the sgai dilp rights 01 guicl 9Q mgilngfiai their )arallelisni, bars removably supported HBO}; the uprights 9 1 ,g ui clgs 1191 gdjustable lon g ituclinally tp aIdapt vthe vfgrm liglrler to walls of different length, and forms for the outgar surfacgs 0f ili Wall remgvably sup} the said longit-Licli al bias.

9. A form holder 0 1 h llQ cgncrete ,yv'all C st u i n; omp ing a n -fi s a 1 st gross bar shppgrtcil theregn, gl licles dependpqlitecl 01" lqngilzudinal adjL lstm ent upon m iwm ill? en ls of hwm s W, .1mm .fqr

'm ta ni g par ll l m u d 9 s ii 'd ilmfba i PPPQIF I i m va bly up n th gu d rm q @11 9 3 w'iage th w ll ll li lf fii for longitudin a j s m n 0 h ba an a islQ la bl f r PPQ Q by th a liira l Do n sw m 'iate"i h u e 91 f l n t hollow in the l In testimony whereof, I have signed my name Mi auk bh s 2 rd day M May,

EBNESI XVATSON, 

